Atlassian rates the severity level of this vulnerability as critical, according to the scale published in our Atlassian severity levels. The scale allows us to rank the severity as critical, high, moderate or low.

This is an independent assessment and you should evaluate its applicability to your own IT environment.

Description

SourceTree for macOS and Windows are affected by vulnerabilities found in the Git and Mercurial software. This vulnerability can be triggered through a malicious repository when it is checked out using SourceTree.

From version 1.4.0 of SourceTree for macOS and 0.8.4b of SourceTree for Windows, this vulnerability can be triggered from a webpage through the use of the SourceTree URI handler.

Versions of SourceTree for macOS starting with 1.0b2 before version 2.6.1 are affected by this vulnerability. This issue can be tracked here.

Versions of SourceTree for Windows starting with 0.5.1.0 before version 2.1.10 are affected by this vulnerability. This issue can be tracked here.

What You Need to Do

Atlassian recommends that you upgrade to the latest version of SourceTree:

To version 2.6.1 or higher for macOS. NOTE: Mac OSX 10.11 or later is requred for SourceTree 2.5.0 or later.

To version 2.1.10 or higher for Windows and manually uninstall any older versions of SourceTree.

For a full description of the latest version of SourceTree, see the release notes for macOS and Windows. You can download the latest versions of SourceTree from the SourceTree website.

References

Atlassian security advisories include a severity level and a CVE identifier. This severity level is based on our self-calculated CVSS score for each specific vulnerability. CVSS is an industry standard vulnerability metric. You can also learn more about CVSS at FIRST.org.